Water-heating system



1Apr;3, 1923.` MEME@ 'T.' H. DRYNAN" WATER HEATING SYSTEM Filed Apr. 4, 1922 Patented Apr. 3, 1923.

rarest arri THOMAS H. DRYNAN, OF SEWICKLEY, PENNSYLVANIA.

WATER-HEATING SYSTEM.

Application iled April 4,

To aZZfwzo/m it may concern.'

Be it known that I, THOMAS H. DRYNAN, a citizen of the United States, residing at Sewickle in the county'of Allegheny and State of IBennsylvania, have invented a new and useful Improvement in lVater-Heating Systems, of which the following is a full, clear, and exact description.

The present invention relates broadly to water heating systems, and more particularly to systems of the gas tired storage type adapted to be thermostatically controlled.

It has heretofore been customary in the art to which this invention relates, to provide gas fired Awater heaters of the storage type with thermostatic controlling elements, such elements usually having been inserted at some point in the reservoir. It has been found that the temperature in different portions of the reservoir varies considerably, and also that the temperature of the water in the coils of the heater is considerably higher than the temperature at any point in the reservoir. It is apparent, therefore, that with systems as heretofore used the thermostats have ordinarily not been effective from a standpoint of accurate temperature 'control, although they have been effective for regulating generally or approximately the temperature conditions desired.

The present invention provides a system in which accurate control of the temperature conditions is possible, whereby the formation of an encrusting scale or objectionable deposit in the coils of the heater is obviated.

The objects and advantages of the present invention will be clearly understood as it becomes better understood by reference to the accompanying drawings and specification. In the drawings, which are merely illustrative of a preferred embodiment of my invention, and in which changes may be made in the construction and operation without departing from the spirit of the irrvention or scope of my broader claims,

Figure l is a side elevation of a portion of a heating system embodying the present inv'ention; and

Figure 2 is a detail sectional view through the release chamber.

The heating system lis illustrated in the accompanying drawings as comprising a reservoir 2 of any desired construction having a cold water inlet 3. Leading from the bottom of the reservoir to the heater 4 is a circulating connection 5 adapted to supply to 1922. Serial No. 549,588.

the heater the water to be heated. After leaving the coils of the heater il, the heated water is adapted to pass by way of a. second circulating connection 6 to a coupling 7, from which the heated water may pass to a service line 8 or to the reservoir 2. Interposed in the circulating connection 6, and preferably at a point adjacent the heater et, is a release chamber 9. The release chamber preferably has a threaded inlet connection 10 adapted to receive the outlet connection from the coils of the heater. Adjacent the opposite end of the release chamber is an outlet opening 1l which is preferably at an angle of substantially 90 to the axis of the inlet connection 10, whereby the release chamber is adapted to be applied vto standard systems already in use. It will be apparent that the outlet connection 1l is adapted to receive, and supply water to, the circulating connection 6. Formed in one end of the release chamber 9 is a threaded opening 12 adapted to receive a thermostat 13 of any usual or well known construction such as ordinarily used in heating systems of this general character. This thermostat controls a valve 14 provided at any desired point in the gas supply pipe l5 which supplies fuel to the heater 4e.

By reason of the construction herein shown, it will be 4apparent that the thermostat is subjected to the action of the water just as it leaves the heater. At this time, the water is at substantially its highest temperalture. By setting the control 16 of the thermostat, it is possible to cut o' the supply of gas just as soon as the temperature of the water in the heater reaches a temperature corresponding to that for which the thermostat is set. This produces very advantageous results, as it reduces the heat supplied to the heater when the water therein has reached the desired temperature, and prevents baking on the deposits such as are ordinarily precipitated by water in heating systems. Just as soon as the heated water is released from the coils and the chamber 9, and a fresh supply of water to be heated passes into the heater through the circulating connection 5, the thermostat will again operate to turn on the gas.

By an actual experiment of an installation of this nature, I have found that the formation of scales or deposits in the coils of the heater is materially reduced, and also that the maximum temperature of the water can be accurately and easily controlled. These constitute important advantages of the present invention.

I claim:

l. In` a Water heating system, a reservoir, a heater, a circulating connection for supplying Water to the heater', a circulating connection for delivering heated Water from the heater to the reservoir, a gas supply pipe, a release chamber in said last mentioned connection receiving hot Water from the heater, and thermostatic-ally controlled means Qin said chamber adapted to control the gas flow through said pipe, substantially' as described.

2,. In a Water heating system, a reservoir, a heater, a circulating connection for supplying Water to the heater, a circulating connection for delivering` heated water from the heater to the reservoir, a gas supply pipe, a release chamber in said last mentioned connection adjacent the heater for receiving hot Water therefrom, and thermostatically controlled means in said chamber adapted to control the gas flow through said pipe, substantially as described.

3. In a Water heating system, a reservoir for heated water, a. heater, a circulating connection for supplying Water to the heater, a circulating connection Vfor delivering heated Water from the heater to the reservoir, a gas supply pipe, a removable chamber through which the hea-ted Water flows in passing from the heater to the reservoir, and thermostatieally operated means in said chamber adapted to control the gas flow: through said pipe, substantially as described.

4. In a Water heating system, a reservoir for heated Water, a heater, a circulating con'- nection for supplying -Water to the heater, a circulating connection for delivering heated Water from the heater to the reservoir, a gas supply pipe, a removable chamber through which the heated Water flows in passing from the heater to the reservoir, and thermostatically operated means in said chamber adapted to contro-l the gas flow through said pipe, said chamber being located adjacent the heater whereby said means is subjected to substantially the temperature of the Water in the heater, nsubstantially as described.

5. A release chamber for l Water heating systems of the type embodying a heater vand reservoir, comprising a casing vhaving kan opening to cooperate with the heated Water outlet connection from the heater, an opening to cooperate with the circulating connection to the reservoir', and an opening to receive a thermostat, substantially las described.

6. A release chamber for Water heating systems of the type embodying a. heater and reservoir, comprising a casing having .an opening to cooperate -With the heated Water outlet connection from the heater, an opening to cooperate with the circulating connection to the reservoir, and an opening to receive a thermostat, said rst mentioned openings having their axes extending at substantially 90 to facilitate installation of the chamber, substantially as described.

In testimony whereof I have hereunto set my hand.

'THOMAS H. 'DRYNAN 

